Source/AIListController.m

   1 /*
   2  * Adium is the legal property of its developers, whose names are listed in the copyright file included
   3  * with this source distribution.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the License,
   7  * or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
  10  * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
  11  * Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  15  */
  16
  17 #import "AIListController.h"
  18 #import "AIAnimatingListOutlineView.h"
  19 #import "AIListWindowController.h"
  20 #import <Adium/AIChat.h>
  21 #import <Adium/AIChatControllerProtocol.h>
  22 #import <Adium/AIContactControllerProtocol.h>
  23 #import <Adium/AIContentControllerProtocol.h>
  24 #import <Adium/AIContentMessage.h>
  25 #import <Adium/AIInterfaceControllerProtocol.h>
  26 #import <Adium/AIPreferenceControllerProtocol.h>
  27 #import <Adium/AISortController.h>
  28 #import <Adium/ESFileTransfer.h>
  29 #import <Adium/AIListContact.h>
  30 #import <Adium/AIListGroup.h>
  31 #import <Adium/AIListObject.h>
  32 #import <Adium/AIListOutlineView.h>
  33 #import <AIUtilities/AIAttributedStringAdditions.h>
  34 #import <AIUtilities/AIAutoScrollView.h>
  35 #import <AIUtilities/AIWindowAdditions.h>
  36 #import <AIUtilities/AIOutlineViewAdditions.h>
  37 #import <AIUtilities/AIObjectAdditions.h>
  38 #import <AIUtilities/AIFunctions.h>
  39
  40 #define EDGE_CATCH_X                                            40.0f
  41 #define EDGE_CATCH_Y                                            40.0f
  42
  43 #define MENU_BAR_HEIGHT                         22
  44
  45 #define KEY_CONTACT_LIST_DOCKED_TO_BOTTOM_OF_SCREEN     [NSString stringWithFormat:@"Contact List Docked To Bottom:%@", [[self contactList] contentsBasedIdentifier]]
  46
  47 #define PREF_GROUP_APPEARANCE           @"Appearance"
  48
  49 @interface AIListController (PRIVATE)
  50 - (void)contactListChanged:(NSNotification *)notification;
  51 @end
  52
  53 @implementation AIListController
  54
  55
  56 - (id)initWithContactList:(AIListObject<AIContainingObject> *)aContactList
  57                         inOutlineView:(AIListOutlineView *)inContactListView
  58                          inScrollView:(AIAutoScrollView *)inScrollView_contactList
  59                                  delegate:(id<AIListControllerDelegate>)inDelegate
  60 {
  61         if ((self = [self initWithContactListView:inContactListView inScrollView:inScrollView_contactList delegate:inDelegate])) {
  62                 [contactListView setDrawHighlightOnlyWhenMain:YES];
  63
  64                 autoResizeVertically = NO;
  65                 autoResizeHorizontally = NO;
  66                 maxWindowWidth = 10000;
  67                 forcedWindowWidth = -1;
  68
  69                 //Observe contact list content and display changes
  70                 [[adium notificationCenter] addObserver:self selector:@selector(contactListChanged:)
  71                                                                                    name:Contact_ListChanged
  72                                                                                  object:nil];
  73                 [[adium notificationCenter] addObserver:self selector:@selector(contactOrderChanged:)
  74                                                                                    name:Contact_OrderChanged
  75                                                                                  object:nil];
  76
  77                 [contactListView addObserver:self
  78                                                   forKeyPath:@"desiredHeight"
  79                                                          options:(NSKeyValueObservingOptionOld | NSKeyValueObservingOptionNew)
  80                                                          context:NULL];
  81
  82                 [self setContactListRoot:(aContactList ? aContactList : [[adium contactController] contactList])];
  83
  84                 //Recall how the contact list was docked last time Adium was open
  85                 dockToBottomOfScreen = [[[adium preferenceController] preferenceForKey:KEY_CONTACT_LIST_DOCKED_TO_BOTTOM_OF_SCREEN
  86                                                                                                                                                  group:PREF_GROUP_WINDOW_POSITIONS] intValue];
  87
  88                 //Observe preference changes
  89                 [[adium preferenceController] registerPreferenceObserver:self forGroup:PREF_GROUP_CONTACT_LIST];
  90         }
  91
  92         return self;
  93 }
  94
  95 //Setup the window after it has loaded
  96 - (void)configureViewsAndTooltips
  97 {
  98         [super configureViewsAndTooltips];
  99
 100         //Listen to when the list window moves (so we can remember which edge we're docked to)
 101         [[NSNotificationCenter defaultCenter] addObserver:self
 102                                                                                          selector:@selector(windowDidMove:)
 103                                                                                                  name:NSWindowDidMoveNotification
 104                                                                                            object:[contactListView window]];
 105 }
 106
 107 - (void)close
 108 {
 109     //Stop observing
 110     [[adium notificationCenter] removeObserver:self];
 111     [[NSNotificationCenter defaultCenter] removeObserver:self];
 112         [[adium preferenceController] unregisterPreferenceObserver:self];
 113
 114         [self autorelease];
 115 }
 116
 117 - (void)dealloc
 118 {
 119         [contactListView removeObserver:self forKeyPath:@"desiredHeight"];
 120
 121         [super dealloc];
 122 }
 123
 124
 125 - (void)preferencesChangedForGroup:(NSString *)group
 126                                                            key:(NSString *)key
 127                                                         object:(AIListObject *)object
 128                                         preferenceDict:(NSDictionary *)prefDict
 129                                                  firstTime:(BOOL)firstTime
 130 {
 131         [(AIAnimatingListOutlineView *)contactListView setEnableAnimation:[[prefDict objectForKey:KEY_CL_ANIMATE_CHANGES] boolValue]];
 132 }
 133
 134 //Resizing And Positioning ---------------------------------------------------------------------------------------------
 135 #pragma mark Resizing And Positioning
 136 //Dynamically resize the contact list
 137 - (void)contactListDesiredSizeChanged
 138 {
 139         NSWindow        *theWindow;
 140
 141     if ((autoResizeVertically || autoResizeHorizontally) &&
 142                 (theWindow = [contactListView window]) &&
 143                 [(AIListWindowController *)[theWindow windowController] windowSlidOffScreenEdgeMask] == AINoEdges) {
 144
 145                 NSRect  currentFrame = [theWindow frame];
 146         NSRect  desiredFrame = [self _desiredWindowFrameUsingDesiredWidth:(autoResizeHorizontally || (forcedWindowWidth != -1))
 147                                                                                                                         desiredHeight:autoResizeVertically];
 148
 149                 if (!NSEqualRects(currentFrame, desiredFrame)) {
 150                         //We must set the min/max first, otherwise our setFrame will be restricted by them and not produce the
 151                         //expected results
 152                         float toolbarHeight = (autoResizeVertically ? [theWindow toolbarHeight] : 0);
 153
 154                         [theWindow setMinSize:NSMakeSize((autoResizeHorizontally ? desiredFrame.size.width : minWindowSize.width),
 155                                                                                          (autoResizeVertically ? (desiredFrame.size.height - toolbarHeight) : minWindowSize.height))];
 156                         [theWindow setMaxSize:NSMakeSize((autoResizeHorizontally ? desiredFrame.size.width : 10000),
 157                                                                                          (autoResizeVertically ? (desiredFrame.size.height - toolbarHeight) : 10000))];
 158
 159                         [theWindow setFrame:desiredFrame display:YES animate:NO];
 160                 }
 161     }
 162 }
 163
 164 //Size for window zoom
 165 - (NSRect)windowWillUseStandardFrame:(NSWindow *)sender defaultFrame:(NSRect)defaultFrame
 166 {
 167     return [self _desiredWindowFrameUsingDesiredWidth:YES desiredHeight:YES];
 168 }
 169
 170 //Window moved, remember which side the user has docked it to
 171 - (void)windowDidMove:(NSNotification *)notification
 172 {
 173         NSWindow        *theWindow = [contactListView window];
 174         NSRect          windowFrame = [theWindow frame];
 175         NSScreen        *theWindowScreen = [theWindow screen];
 176
 177         NSRect          boundingFrame = [theWindowScreen frame];
 178         NSRect          visibleBoundingFrame = [theWindowScreen visibleFrame];
 179
 180         AIDockToBottomType oldDockToBottom = dockToBottomOfScreen;
 181
 182         //First, see if they are now within EDGE_CATCH_Y of the total boundingFrame
 183         if ((windowFrame.origin.y < boundingFrame.origin.y + EDGE_CATCH_Y) &&
 184            ((windowFrame.origin.y + windowFrame.size.height) < (boundingFrame.origin.y + boundingFrame.size.height - EDGE_CATCH_Y))) {
 185                 dockToBottomOfScreen = AIDockToBottom_TotalFrame;
 186                         } else {
 187                 //Then, check for the (possibly smaller) visibleBoundingFrame
 188                 if ((windowFrame.origin.y < visibleBoundingFrame.origin.y + EDGE_CATCH_Y) &&
 189                    ((windowFrame.origin.y + windowFrame.size.height) < (visibleBoundingFrame.origin.y + visibleBoundingFrame.size.height - EDGE_CATCH_Y))) {
 190                         dockToBottomOfScreen = AIDockToBottom_VisibleFrame;
 191                 } else {
 192                         dockToBottomOfScreen = AIDockToBottom_No;
 193                 }
 194         }
 195
 196         //Remember how the contact list is currently docked for next time
 197         if (oldDockToBottom != dockToBottomOfScreen) {
 198                 [[adium preferenceController] setPreference:[NSNumber numberWithInt:dockToBottomOfScreen]
 199                                                                                          forKey:KEY_CONTACT_LIST_DOCKED_TO_BOTTOM_OF_SCREEN
 200                                                                                           group:PREF_GROUP_WINDOW_POSITIONS];
 201         }
 202 }
 203
 204 //Desired frame of our window - if one of the BOOL values is NO, don't modify that value from the current frame
 205 - (NSRect)_desiredWindowFrameUsingDesiredWidth:(BOOL)useDesiredWidth desiredHeight:(BOOL)useDesiredHeight
 206 {
 207         NSRect      windowFrame, viewFrame, newWindowFrame, screenFrame, visibleScreenFrame, boundingFrame;
 208         NSWindow        *theWindow = [contactListView window];
 209         NSScreen        *currentScreen = [theWindow screen];
 210         int                     desiredHeight = [contactListView desiredHeight];
 211         BOOL            anchorToRightEdge = NO;
 212
 213         windowFrame = [theWindow frame];
 214         newWindowFrame = windowFrame;
 215         viewFrame = [scrollView_contactList frame];
 216
 217         if (!currentScreen) currentScreen = [NSScreen mainScreen];
 218
 219         screenFrame = [currentScreen frame];
 220         visibleScreenFrame = [currentScreen visibleFrame];
 221
 222     //Width
 223         if (useDesiredWidth) {
 224                 if (forcedWindowWidth != -1) {
 225                         //If auto-sizing is disabled, use the specified width
 226                         newWindowFrame.size.width = forcedWindowWidth;
 227                 } else {
 228                         /* Using horizontal auto-sizing, so find and determine our new width
 229                          *
 230                          * First, subtract the current size of the view from our frame
 231                          */
 232                         newWindowFrame.size.width -= viewFrame.size.width;
 233
 234                         //Now, figure out how big the view wants to be and add that to our frame
 235                         newWindowFrame.size.width += [contactListView desiredWidth];
 236
 237                         //Don't get bigger than our maxWindowWidth
 238                         if (newWindowFrame.size.width > maxWindowWidth) {
 239                                 newWindowFrame.size.width = maxWindowWidth;
 240                         } else if (newWindowFrame.size.width < 0) {
 241                                 newWindowFrame.size.width = 0;
 242                         }
 243                 }
 244
 245                 //Anchor to the appropriate screen edge
 246                 anchorToRightEdge = ((currentScreen && ((NSMaxX(windowFrame) + EDGE_CATCH_X) >= NSMaxX(visibleScreenFrame))) ||
 247                                                          [(AIListWindowController *)[theWindow windowController] windowSlidOffScreenEdgeMask] == AIMaxXEdgeMask);
 248                 if (anchorToRightEdge) {
 249                         newWindowFrame.origin.x = NSMaxX(windowFrame) - NSWidth(newWindowFrame);
 250                 } else {
 251                         newWindowFrame.origin.x = NSMinX(windowFrame);
 252                 }
 253         }
 254
 255         /*
 256          * Compute boundingFrame for window
 257          *
 258          * If the window is against the left or right edges of the screen AND the user did not dock to the visibleFrame last,
 259          * we use the full screenFrame as our bound.
 260          * The edge check is used since most users' docks will not extend to the edges of the screen.
 261          * Alternately, if the user docked to the total frame last, we can safely use the full screen even if we aren't
 262          * on the edge.
 263          */
 264         BOOL windowOnEdge = ((NSMinX(newWindowFrame) < NSMinX(screenFrame) + EDGE_CATCH_X) ||
 265                                                  (NSMaxX(newWindowFrame) > (NSMaxX(screenFrame) - EDGE_CATCH_X)));
 266
 267         if ((windowOnEdge && (dockToBottomOfScreen != AIDockToBottom_VisibleFrame)) ||
 268            (dockToBottomOfScreen == AIDockToBottom_TotalFrame)) {
 269                 NSArray *screens;
 270
 271                 boundingFrame = screenFrame;
 272
 273                 //We still should not violate the menuBar, so account for it here if we are on the menuBar screen.
 274                 if ((screens = [NSScreen screens]) &&
 275                         ([screens count]) &&
 276                         (currentScreen == [screens objectAtIndex:0])) {
 277                         boundingFrame.size.height -= MENU_BAR_HEIGHT;
 278                 }
 279
 280         } else {
 281                 boundingFrame = visibleScreenFrame;
 282         }
 283
 284         //Height
 285         if (useDesiredHeight) {
 286                 //Subtract the current size of the view from our frame
 287                 newWindowFrame.size.height -= viewFrame.size.height;
 288
 289                 //Now, figure out how big the view wants to be and add that to our frame
 290                 newWindowFrame.size.height += desiredHeight;
 291
 292                 //Vertical positioning and size if we are placed on a screen
 293                 if (NSHeight(newWindowFrame) >= NSHeight(boundingFrame)) {
 294                         //If the window is bigger than the screen, keep it on the screen
 295                         newWindowFrame.size.height = NSHeight(boundingFrame);
 296                         newWindowFrame.origin.y = NSMinY(boundingFrame);
 297                 } else {
 298                         //A non-full height window is anchored to the appropriate screen edge
 299                         if (dockToBottomOfScreen == AIDockToBottom_No) {
 300                                 //If the user did not dock to the bottom in any way last, the origin should move up
 301                                 newWindowFrame.origin.y = NSMaxY(windowFrame) - NSHeight(newWindowFrame);
 302                         } else {
 303                                 //If the user did dock (either to the full screen or the visible screen), the origin should remain in place.
 304                                 newWindowFrame.origin.y = NSMinY(windowFrame);
 305                         }
 306                 }
 307
 308                 //We must never request a height of 0 or OS X will completely move us off the screen
 309                 if (newWindowFrame.size.height == 0) newWindowFrame.size.height = 1;
 310
 311                 //Keep the window from hanging off any Y screen edge (This is optional and could be removed if this annoys people)
 312                 if (NSMaxY(newWindowFrame) > NSMaxY(boundingFrame)) newWindowFrame.origin.y = NSMaxY(boundingFrame) - newWindowFrame.size.height;
 313                 if (NSMinY(newWindowFrame) < NSMinY(boundingFrame)) newWindowFrame.origin.y = NSMinY(boundingFrame);
 314         }
 315
 316         if (useDesiredWidth) {
 317                 /* If the desired height plus any toolbar height exceeds the height we determined, we will be showing a scroller;
 318                  * expand horizontally to take that into account.  The magic number 2 fixes this method for use with our borderless
 319                  * windows... I'm not sure why it's needed, but it doesn't hurt anything.
 320                  */
 321                 if (desiredHeight + (NSHeight(windowFrame) - NSHeight(viewFrame)) > NSHeight(newWindowFrame) + 2) {
 322                         float scrollerWidth = [NSScroller scrollerWidthForControlSize:[[scrollView_contactList verticalScroller] controlSize]];
 323                         newWindowFrame.size.width += scrollerWidth;
 324
 325                         if (anchorToRightEdge) {
 326                                 newWindowFrame.origin.x -= scrollerWidth;
 327                         }
 328                 }
 329
 330                 //We must never request a width of 0 or OS X will completely move us off the screen
 331                 if (newWindowFrame.size.width == 0) newWindowFrame.size.width = 1;
 332
 333                 //Keep the window from hanging off any X screen edge (This is optional and could be removed if this annoys people)
 334                 if (NSMaxX(newWindowFrame) > NSMaxX(boundingFrame)) newWindowFrame.origin.x = NSMaxX(boundingFrame) - NSWidth(newWindowFrame);
 335                 if (NSMinX(newWindowFrame) < NSMinX(boundingFrame)) newWindowFrame.origin.x = NSMinX(boundingFrame);
 336         }
 337
 338         return newWindowFrame;
 339 }
 340
 341 - (void)setMinWindowSize:(NSSize)inSize {
 342         minWindowSize = inSize;
 343 }
 344 - (void)setMaxWindowWidth:(int)inWidth {
 345         maxWindowWidth = inWidth;
 346 }
 347 - (void)setAutoresizeHorizontally:(BOOL)flag {
 348         autoResizeHorizontally = flag;
 349 }
 350 - (void)setAutoresizeVertically:(BOOL)flag {
 351         autoResizeVertically = flag;
 352 }
 353 - (void)setForcedWindowWidth:(int)inWidth {
 354         forcedWindowWidth = inWidth;
 355 }
 356
 357 //Content Updating -----------------------------------------------------------------------------------------------------
 358 #pragma mark Content Updating
 359 /*!
 360  * @brief The entire contact list, or an entire group, changed
 361  *
 362  * This indicates that an entire group changed -- the contact list is just a giant group, so that includes the entire
 363  * contact list changing.  Reload the appropriate object.
 364  */
 365 - (void)contactListChanged:(NSNotification *)notification
 366 {
 367         id              object = [notification object];
 368
 369         //Redisplay and resize
 370         if (!object || object == contactList) {
 371                 [contactListView reloadData];
 372
 373         } else {
 374                 NSDictionary    *userInfo = [notification userInfo];
 375                 AIListGroup             *containingGroup = [userInfo objectForKey:@"ContainingGroup"];
 376
 377                 if (!containingGroup || containingGroup == contactList) {
 378                         //Reload the whole tree if the containing group is our root
 379
 380                 } else {
 381                         /* We need to reload the contaning group since this notification is posted when adding and removing objects.
 382                          * Reloading the actual object that changed will produce no results since it may not be on the list.
 383                          */
 384                         [contactListView reloadItem:containingGroup reloadChildren:YES];
 385                 }
 386         }
 387 }
 388
 389 - (AIListObject<AIContainingObject> *)contactList
 390 {
 391         return contactList;
 392 }
 393
 394 - (AIListOutlineView *)contactListView
 395 {
 396         return contactListView;
 397 }
 398
 399 /*!
 400  * @brief Order of contacts changed
 401  *
 402  * The notification's object is the contact whose order changed.
 403  * We must reload the group containing that contact in order to correctly update the list.
 404  */
 405 - (void)contactOrderChanged:(NSNotification *)notification
 406 {
 407         id              object = [[notification object] containingObject];
 408
 409         //Treat a nil object as equivalent to the whole contact list
 410         if (!object || (object == contactList)) {
 411                 [contactListView reloadData];
 412         } else {
 413                 [contactListView reloadItem:object reloadChildren:YES];
 414         }
 415 }
 416
 417 /*!
 418  * @brief List object attributes changed
 419  *
 420  * Resize horizontally if desired and the display name changed
 421  */
 422 - (void)listObjectAttributesChanged:(NSNotification *)notification
 423 {
 424         NSSet   *keys;
 425
 426         [super listObjectAttributesChanged:notification];
 427
 428     keys = [[notification userInfo] objectForKey:@"Keys"];
 429
 430     //Resize the contact list horizontally
 431     if (autoResizeHorizontally) {
 432                 if (([keys containsObject:@"Display Name"] || [keys containsObject:@"Long Display Name"])) {
 433                         [self contactListDesiredSizeChanged];
 434                 }
 435     }
 436 }
 437
 438 /*!
 439  * @brief The outline view selection changed
 440  *
 441  * On the next run loop, post Interface_ContactSelectionChanged.  Why wait for the next run loop?
 442  * If we post this notification immediately, our outline view may not yet be key, and the contact controller
 443  * will return nil for 'selectedListObject'.  If we wait, the outline view will be definitely be set as key, and
 444  * everything will work as expected.
 445  */
 446 - (void)outlineViewSelectionDidChange:(NSNotification *)notification
 447 {
 448         [[adium notificationCenter] performSelector:@selector(postNotificationName:object:)
 449                                                                          withObject:Interface_ContactSelectionChanged
 450                                                                          withObject:nil
 451                                                                          afterDelay:0];
 452 }
 453
 454 #pragma mark Drag & Drop
 455
 456 /*!
 457  * @brief Method to check if operations need to be performed
 458  */
 459 - (NSDragOperation)outlineView:(NSOutlineView*)outlineView validateDrop:(id <NSDraggingInfo>)info proposedItem:(id)item proposedChildIndex:(int)index
 460 {
 461     NSArray                     *types = [[info draggingPasteboard] types];
 462         NSDragOperation retVal = NSDragOperationNone;
 463
 464         //No dropping into contacts
 465         BOOL allowBetweenContactDrop = (index == NSOutlineViewDropOnItemIndex);
 466
 467         if ([types containsObject:@"AIListObject"]) {
 468                 if (index != NSOutlineViewDropOnItemIndex && (![[[adium contactController] activeSortController] canSortManually])) {
 469                         //Don't drag if automatic sort is on
 470                         //disable drop between for non-Manual Sort.
 471                         return NSDragOperationNone;
 472                 }
 473
 474                 NSEnumerator *enumerator = [dragItems objectEnumerator];
 475                 id                       dragItem;
 476                 BOOL             hasGroup = NO, hasNonGroup = NO;
 477                 while ((dragItem = [enumerator nextObject])) {
 478                         if ([dragItem isKindOfClass:[AIListGroup class]])
 479                                 hasGroup = YES;
 480                         if (![dragItem isKindOfClass:[AIListGroup class]])
 481                                 hasNonGroup = YES;
 482                         if (hasGroup && hasNonGroup) break;
 483                 }
 484
 485                 //Don't allow a drop within the contact list or within a group if we contain a mixture of groups and non-groups (e.g. contacts)
 486                 if (hasGroup && hasNonGroup) return NSDragOperationNone;
 487
 488                 id      primaryDragItem = [dragItems objectAtIndex:0];
 489
 490                 if ([primaryDragItem isKindOfClass:[AIListGroup class]]) {
 491                         //Disallow dragging groups into or onto other objects
 492                         if (item != nil) {
 493                                 if ([item isKindOfClass:[AIListGroup class]]) {
 494                                         // In between objects
 495                                         [outlineView setDropItem:nil dropChildIndex:[[item containingObject] indexOfObject:item]];
 496                                 } else {
 497                                         // On top of an object
 498                                         [outlineView setDropItem:nil dropChildIndex:[[[item containingObject] containingObject] indexOfObject:[item containingObject]]];
 499                                 }
 500                         }
 501
 502                 } else {
 503                         //We have one or more contacts. Don't allow them to drop on the contact list itself
 504                         if (!item && [[adium contactController] useContactListGroups]) {
 505                                 /* The user is hovering on the contact list itself.
 506                                  * If groups are shown at all, assuming we have any items in the list at all, she is hovering just below
 507                                  * a group or an item in a group.
 508                                  * Do this right by shifting the drop to object above.
 509                                  */
 510                                 id itemAboveProposedIndex = [outlineView itemAtRow:(index - 1)];
 511                                 if (!itemAboveProposedIndex) {
 512                                         //At the very end, presumably
 513                                         itemAboveProposedIndex = [outlineView itemAtRow:([outlineView numberOfRows] - 1)];
 514                                 }
 515
 516                                 if ([itemAboveProposedIndex isKindOfClass:[AIListGroup class]]) {
 517                                         [outlineView setDropItem:itemAboveProposedIndex dropChildIndex:NSOutlineViewDropOnItemIndex];
 518                                 } else {
 519                                         [outlineView setDropItem:[itemAboveProposedIndex containingObject] dropChildIndex:NSOutlineViewDropOnItemIndex];
 520                                 }
 521
 522                         }
 523                 }
 524
 525                 if ((index == NSOutlineViewDropOnItemIndex) && [item isKindOfClass:[AIListContact class]] && ([info draggingSource] == [self contactListView])) {
 526                         //Dropping into a contact or attaching groups: Copy
 527                         if (([contactListView rowForItem:primaryDragItem] == -1) ||
 528                                 [primaryDragItem isKindOfClass:[AIListContact class]]) {
 529                                 retVal = NSDragOperationCopy;
 530                         } else {
 531                                 retVal = NSDragOperationMove;
 532                         }
 533
 534                 } else {
 535                         //Otherwise, it's either a move into a group or a manual reordering
 536                         if (!item || [outlineView isExpandable:item]) {
 537                                 //Figure out where we would insert the dragged item if the sort controller manages the location and it's going into an expandable item
 538                                 AISortController *sortController = [[adium contactController] activeSortController];
 539                                 //XXX If we can sort manually but the sort controller also has some control (e.g. status sort with manual ordering), we should get a hint and make use of it.
 540                                 if (![sortController canSortManually]) {
 541                                         //If we're dragging a group, force a drop onto the contact list itself, and determine the destination location accordingly
 542                                         if ([primaryDragItem isKindOfClass:[AIListGroup class]]) item = nil;
 543
 544                                         int indexForInserting = [sortController indexForInserting:[dragItems objectAtIndex:0]
 545                                                                                                                                   intoObjects:(item ? [item containedObjects] : [[[adium contactController] contactList] containedObjects])];
 546                                         /*
 547                                          For example, to specify a drop on an item I, you specify item as 1 and index as NSOutlineViewDropOnItemIndex.
 548                                          To specify a drop between child 2 and 3 of item I, you specify item as I and index as 3 (children are a zero-based index).
 549                                          To specify a drop on an unexpandable item 1, you specify item as I and index as NSOutlineViewDropOnItemIndex.
 550                                          */
 551                                         [outlineView setDropItem:item dropChildIndex:indexForInserting];
 552                                 }
 553                         }
 554
 555
 556                         retVal = NSDragOperationPrivate;
 557                 }
 558
 559         } else if ([types containsObject:NSFilenamesPboardType] ||
 560                            [types containsObject:NSRTFPboardType]) {
 561                 retVal = ((item && [item isKindOfClass:[AIListContact class]]) ? NSDragOperationLink : NSDragOperationNone);
 562
 563         } else if (!allowBetweenContactDrop) {
 564                 retVal = NSDragOperationNone;
 565         }
 566
 567         return retVal;
 568 }
 569
 570 - (BOOL)outlineView:(NSOutlineView *)outlineView acceptDrop:(id <NSDraggingInfo>)info item:(id)item childIndex:(int)index
 571 {
 572         BOOL            success = YES;
 573         NSString        *availableType = [[info draggingPasteboard] availableTypeFromArray:[NSArray arrayWithObject:@"AIListObject"]];
 574
 575     if ([availableType isEqualToString:@"AIListObject"]) {
 576                 //Kill the selection now, (in a more finder-esque way)
 577                 [outlineView deselectAll:nil];
 578
 579                 //The tree root is not associated with our root contact list group, so we need to make that association here
 580                 if (item == nil)
 581                         item = contactList;
 582
 583                 //Move the list object to its new location
 584                 if ([item isKindOfClass:[AIListGroup class]]) {
 585                         if (item != [[adium contactController] offlineGroup]) {
 586                                 [[adium contactController] moveListObjects:dragItems intoObject:item index:index];
 587
 588                                 [[adium notificationCenter] postNotificationName:@"Contact_ListChanged"
 589                                                                                                                   object:item
 590                                                                                                                 userInfo:nil];
 591                         } else {
 592                                 success = NO;
 593                         }
 594
 595                 } else if ([item isKindOfClass:[AIListContact class]]) {
 596                         NSString        *promptTitle;
 597
 598                         //Appropriate prompt
 599                         if ([dragItems count] == 1) {
 600                                 promptTitle = [NSString stringWithFormat:AILocalizedString(@"Combine %@ and %@?","Title of the prompt when combining two contacts. Each %@ will be filled with a contact name."), [[dragItems objectAtIndex:0] displayName], [item displayName]];
 601                         } else {
 602                                 promptTitle = [NSString stringWithFormat:AILocalizedString(@"Combine these contacts with %@?","Title of the prompt when combining two or more contacts with another.  %@ will be filled with a contact name."),[item displayName]];
 603                         }
 604
 605                         //Metacontact creation, prompt the user
 606                         NSDictionary    *context = [NSDictionary dictionaryWithObjectsAndKeys:
 607                                 item, @"item",
 608                                 dragItems, @"dragitems", nil];
 609
 610                         NSBeginInformationalAlertSheet(promptTitle,
 611                                                                                    AILocalizedString(@"Combine","Button title for accepting the action of combining multiple contacts into a metacontact"),
 612                                                                                    AILocalizedString(@"Cancel",nil),
 613                                                                                    nil,
 614                                                                                    nil,
 615                                                                                    self,
 616                                                                                    @selector(mergeContactSheetDidEnd:returnCode:contextInfo:),
 617                                                                                    nil,
 618                                                                                    [context retain], //we're responsible for retaining the content object
 619                                                                                    AILocalizedString(@"Once combined, Adium will treat these contacts as a single individual both on your contact list and when sending messages.\n\nYou may un-combine these contacts by getting info on the combined contact.","Explanation of metacontact creation"));
 620                 }
 621         } else if ([[[info draggingPasteboard] types] containsObject:NSFilenamesPboardType]) {
 622                 //Drag and Drop file transfer for the contact list.
 623                 NSString                *file;
 624                 NSArray                 *files = [[info draggingPasteboard] propertyListForType:NSFilenamesPboardType];
 625                 NSEnumerator    *enumerator = [files objectEnumerator];
 626
 627                 while ((file = [enumerator nextObject])) {
 628                         AIListContact   *targetFileTransferContact = [[adium contactController] preferredContactForContentType:CONTENT_FILE_TRANSFER_TYPE
 629                                                                                                                                                                                                         forListContact:item];
 630                         [[adium fileTransferController] sendFile:file toListContact:targetFileTransferContact];
 631                 }
 632
 633         } else if ([[[info draggingPasteboard] types] containsObject:NSRTFPboardType]) {
 634                 //Drag and drop text sending via the contact list.
 635                 if ([item isKindOfClass:[AIListContact class]]) {
 636                         /* This will send the message. Alternately, we could just insert it into the text view... */
 637                         AIChat                                                  *chat;
 638                         AIContentMessage                                *messageContent;
 639
 640                         chat = [[adium chatController] openChatWithContact:(AIListContact *)item
 641                                                                                         onPreferredAccount:YES];
 642                         messageContent = [AIContentMessage messageInChat:chat
 643                                                                                                   withSource:[chat account]
 644                                                                                                  destination:[chat listObject]
 645                                                                                                                 date:nil
 646                                                                                                          message:[NSAttributedString stringWithData:[[info draggingPasteboard] dataForType:NSRTFPboardType]]
 647                                                                                                    autoreply:NO];
 648
 649                         [[adium contentController] sendContentObject:messageContent];
 650
 651                 } else {
 652                         success = NO;
 653                 }
 654         }
 655
 656         [super outlineView:outlineView acceptDrop:info item:item childIndex:index];
 657
 658         //XXX Is this actually needed?
 659         [self contactListChanged:nil];
 660
 661     return success;
 662 }
 663
 664 - (void)mergeContactSheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo
 665 {
 666         NSDictionary    *context = (NSDictionary *)contextInfo;
 667
 668         if (returnCode == 1) {
 669                 AIListObject    *item = [context objectForKey:@"item"];
 670                 NSArray                 *draggedItems = [context objectForKey:@"dragitems"];
 671                 AIMetaContact   *metaContact;
 672
 673                 //Keep track of where it was before
 674                 AIListObject<AIContainingObject> *oldContainingObject = [[item containingObject] retain];
 675                 float oldIndex = [item orderIndex];
 676
 677                 //Group the destination and then the dragged items into a metaContact
 678                 metaContact = [[adium contactController] groupListContacts:[[NSArray arrayWithObject:item] arrayByAddingObjectsFromArray:draggedItems]];
 679
 680                 //Position the metaContact in the group & index the drop point was before
 681                 [[adium contactController] moveListObjects:[NSArray arrayWithObject:metaContact]
 682                                                                                 intoObject:oldContainingObject
 683                                                                                          index:oldIndex];
 684
 685                 [oldContainingObject release];
 686         }
 687
 688         [context release]; //We are responsible for retaining & releasing the context dict
 689 }
 690
 691 #pragma mark KVO
 692
 693 - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
 694 {
 695         if (object == contactListView && [keyPath isEqualToString:@"desiredHeight"]) {
 696                 if ([[change objectForKey:NSKeyValueChangeNewKey] intValue] != [[change objectForKey:NSKeyValueChangeOldKey] intValue])
 697                         [self contactListDesiredSizeChanged];
 698
 699         }
 700 }
 701
 702 #pragma mark Preferences
 703
 704 - (AIContactListWindowStyle)windowStyle
 705 {
 706         NSNumber        *windowStyleNumber = [[adium preferenceController] preferenceForKey:KEY_LIST_LAYOUT_WINDOW_STYLE
 707                                                                                                                                                           group:PREF_GROUP_APPEARANCE];
 708         return (windowStyleNumber ? [windowStyleNumber intValue] : AIContactListWindowStyleStandard);
 709 }
 710
 711
 712
 713 @end